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Finding the Fourth Proportional to 9,993.77, 14,996.12 and 5,611.57

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Solution

The fourth proportional to 9,993.77, 14,996.12 and 5,611.57 is: 8,420.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.77 : 14,996.12 = 5,611.57 : x
  2. Step 2: Convert to fraction form
    9,993.77/14,996.12 = 5,611.57/x
  3. Step 3: Cross multiply
    9,993.77x = 14,996.12 × 5,611.57
  4. Step 4: Simplify right side
    9,993.77x = 84,151,777.11
  5. Step 5: Solve for x
    x = 84,151,777.11/9,993.77
  6. Step 6: Final answer
    x = 8,420.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.